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Sorci Sess7 101309

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SAME 2009 California Water Conference
SAME 2009 California Water Conference
Technology
1 of 31
Impact of Levee Cutoff Walls on Groundwater Recharge Presented By: Paul Sorci, PE
 
 
Outline ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Sacramento River Location Sacramento River Farmlands Downtown Sacramento Groundwater Analyzed
Overview of Cutoff Walls ,[object Object],[object Object],[object Object]
Overview of Cutoff Walls ,[object Object],Cutoff Wall Permeable Sands Fine Grained Soils Fine Grained Soils
Overview of Cutoff Walls ,[object Object]
Overview of Cutoff Walls ,[object Object],[object Object],[object Object]
Cutoff Wall Construction ,[object Object],Permeable Sands Low Permeable Clay/Silt Levee/Blanket Layer Ground Surface 5’ Min. 6’ Wide Element 2’ Overlap
Cutoff Wall Construction ,[object Object],Previously Mixed Element Next Element Alignment Next Element
Cutoff Wall Construction ,[object Object],Slurry Injection at Auger Tips
Cutoff Wall Construction ,[object Object],Permeable Sands Low Permeable Clay/Silt Levee/Blanket Layer Ground Surface
Cutoff Wall Construction ,[object Object],Spoils Used for Mixing Consisting Mostly of Clay Excavated Trench Bentonite Slurry
Cutoff Wall Construction ,[object Object],Mixing Excavator Bentonite Slurry Mix of Soil, Cement, and Bentonite
Cutoff Wall Construction ,[object Object],Trench Backfill Trench Mix
Cutoff Wall Construction ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Groundwater Affects ,[object Object],[object Object],[object Object],[object Object],[object Object]
Groundwater Affects ,[object Object],[object Object],[object Object],[object Object],[object Object]
Groundwater Affects ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Groundwater Affects ,[object Object],[object Object],[object Object],[object Object]
Groundwater Affects ,[object Object],[object Object],[object Object]
Station 70+00 85% Reduction Station 353+00 40% Reduction Cutoff Wall Tip in Fine Grained Soils Cutoff Wall Tip in Coarse Grained Soils
Groundwater Affects ,[object Object],[object Object],[object Object],Rainy Season – Groundwater Recharge
Groundwater Affects ,[object Object],[object Object],[object Object],[object Object],[object Object]
Groundwater Affects ,[object Object],[object Object],Difference in Groundwater Recharge Rainy Season
Groundwater Affects ,[object Object],[object Object],[object Object],[object Object],[object Object]
Groundwater Affects ,[object Object],[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object]
Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Questions ?

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Sorci Sess7 101309

  • 1. Impact of Levee Cutoff Walls on Groundwater Recharge Presented By: Paul Sorci, PE
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  • 5. Sacramento River Location Sacramento River Farmlands Downtown Sacramento Groundwater Analyzed
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  • 23. Station 70+00 85% Reduction Station 353+00 40% Reduction Cutoff Wall Tip in Fine Grained Soils Cutoff Wall Tip in Coarse Grained Soils
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